Transmission mechanism



H. L. APPLEBAUM.

TRANSMISSION MECHANISM.

- APPLICATION FILED FEB-26,!92I- 1,413,563, Patented Apr. '25, 1922.

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III t I 99 Q I N IIW I WITNESSES l INVENTOR' H. L. APPLEBAUM. TRANSMISSION MECHANISM.

APPL IC'ATION FILED FEB. 26, I921- Patented Apr. 25, 1922.

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I /Nl /ENTOR ififgni yflppleaum,

nrromtrs WITNESSES H. L. APPLEBAUM.

TRANSMISSION MECHANISM.

APPLICATION map FEB. 26, I921.

PatentedApr. 25, 1922.

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A lNl/ENTUR jfanyllflppie a 4 rromvsrs WITNESSES WM .Mecha-nism, of which the following is a tionbeing of simple, durable and fil'cl ellfi" construction and capable v of transmittlng j UNLI ea slams HARRY L; AEBLEB UM, oncononano.

Tb all w 7mm it may concm Be itlrnown that I HARRY L. APPIEB M,

a citizen of the United States, and a--resi'-.

dent of'Denver, in the county of Denver and State ofColorado, have lnventedcertaln new and useful Improvements n Transm ss on specification. i l v 7 "My inventlon' relates to power transm ssion mechanism, and the purpose of my ii vention is the provision v of'a transmission mechanism by means of which the ratio, Of rotational speed in either direction between driving and driven elements; can be grad} ual'ly varied to a selected degree my nvem any and allspeeds.

I willfdescrib e one form of'transmission; mechanism embodying; my invention willthen point out the novel features-there;

ofin-claimsJ i. I v In the accompanyingdrawlngs {Figure-1 is a viewshowing'in top'plan;

one form of transmission mechanism emfhodying my invention. v

Figur'e 2-is afview showinglinl side elevatio'nth'e mechanism shown in 'Fi'gure 1, V

-Figure 3 is a View showing in longitudinal 1 section the mecln nisin" shown inthe preceding viewsf j J:

= igures 4 and 5 are vertical sectional views taken on the lines 7 tively,'of Figurel; Figure 6is a view showing .certalnparts of the" clutch devices embodied in the ism shown in, the precedingviews';

employed in the clutch devices.

Figure 8 1s a View. slm larjto Figure 2 with part ofthe framebroken away andthe particularly to Figures 1 and 2, my inventionin its presentembodiment comprisesa reci rocat' drivin element designated at- E' which is adapted to be reciprocatedf E-@1 tha i the le entnbm wh'e otate m maNsnI sx/Q psci ca anl f etters-r sent 1 Eaten-ted: 25,1922; pp qat n. fii i emm 2. 19.21,. a ia ham 7' Y 7 nn ct ng it. d re ly; t the c a k ha t of n e gi lej' thmuga allnit iiizn v r o her a e w s (99 25110171 1); uc ele e ab in y nat edgenerally at which'is constructed to, Hermi o r ation; o t e. lement. w i 6mg IQQlR QQ tQQlYbX h lement em? t or 4 t end with. a. lx fitted; i. a; o e pondingly ap o ket ii'numeledfm ab ari ng .8 of the a d; emem 13?, asielear y how n F r 3! BXmeansQi hisconnect m,the driv ne e sra r e t re iprocate und r t a F a slf s p o ded t ne sql lelteiport ion lfii which is, slid joiit ffilei, in a bearing 15,

Q med' onio e and; of a driv n Parts; a cor esponding n rem nt t th r venelem iit; which mov ment ay 0-, on; dur ng the rec procationiof the driving element.

Ki led 51 20 element E i a P i-i W hin 1s dly deql I man r'e s ly i toe tw compa e HAQHES? by: mean fi Par ion} 19-; W in:

as lt ofTthe e; impa ents} ar r anged."

' ntermitte t,clutch-devi es wh ch var id n i ar n; constr ctiqriflse ha apdescriptiq o 7 ice, the pr sent inst n e, comprises a geim .2Q 20. hi a o -l n" l gf rel, s

ement? 5 ;.-Lwh ;1 iu-ii -"i outer: fa a bearing 21, is formed. for" a purpose; which arice lso n l de cag 22. o 22"+- of, an; Fulfill f rm 1ir lproyided at regular spaced mte rvals with sl s-:23 which rm pocket V proyid d'ax ally thereofwith airfopen ng,.to. loosely, receive;.the 3driving; 1

V wil-l lelliereina fterj described, Each clutch, F igure 7 1s a view showing one of'thev cams at. hezmtertieu of: lu d members 2 asqolearly shown. in Figures 3 and. 5. The

clutch members. 24 may; be inthe it'orm of balls -roller r, Or; the like, I having in the; pre ent. .s a ;ev sh n o l s whi h e,

olfjalength. to permit their free movement longitudinally of; the-slots 23 and of a' di: ameter which; appreciably exceeds the, thick-- ness fthep eriineter of-Ithe cage 22 or 22.

. Asjilli str'ated to; advantage in Figure 6,

each cage 012223 provided with a diametricallyextending arm.25. -0r 25% which s o m w t-h asn tah openi g e yreceive: thedriving element. E and which in applied position as shown ini Figurej element E so as to lock the arm and conse-' quently the drum against longitudinal movement upon the driving element. the applied position of the cages 22 and 22 they are interposed between-thecams 20 and 20 and the inner periphery ofthe drum D, with the several clutch members 24 confined within the pockets 23 andhaving rolling contact with the faces of the cams and the inner peripheryof the drum. Each clutch device normally occupies what is termed a neutral position wherein it is ineffective to rotate the drum D; this po sition of the clutch being shown to advantage in Figure awherein it will be seen that the cage 22v or 22 occupies a position in which the clutch members 24ers disposed medially of the ends of the facets of the cam 20 or 20 so that such members can freely rotate without having a clutching action upon the inner periphery of the drum. However, when the cage 22 or 22*"- is shifted circumferentially in one direction or the other, "the clutch members 2-1 are moved to one end or the other of the facets of thecam so that when the cainjis rotated they will be locked. against rotation" and thereby effect an operative'conneetion between the cam and drum so that the latter'will rotate with the former. l/Vhen the cage 22 or 22 'is shifted from the neutral position as shown'in F igu r e 5 to one extreme position as-show'n in Figure 9", rota-j tion of the cam 20 in a counterclockwise direction will effect a correspondin move ment of the drum D. Conversely, when the cage 22 is shifted to the, other extreme po rendering such movement of the cam inef fective to move the drum. It will therefore be seen that should oscillatory movement be imparted to the cam 20 when the cage 22 is in one of its extreme positions a step by step rotation ofthe drum is effected.

From the foregoing operation of one clutch device it will be clear that should the cages 22 and 224 be shifted to occupy opposite extreme positions and the earns 20 and 20 oscillated so that they move in opposite directions, first one clutch device and then the other will operate to'effect a continuous rotation of the drum D, and by shifting the cages 22 and 22 so as to occupy the other extreme position, the directional rotationof the drum can be reversed.

To effect shifting of the cages from neutralposition to either extreme position and returning the same again to neutral position, and to effect oscillatory movement of the cams 20 and 20 I provide in the present instance a pair of stub shafts 27 and 27 which are journaled in the bearings 21 and 21? of the cams 20 and 20". As illustrated to advantage in Figure 6 each Stub shaft 27 01 27 is provided at its inner end with a pin 28 or 28 and at its outer end with a substantially U-shaped yoke 29 or 29, By-rotating the stub shaft 27 or 27* the pin 28 or 28 is moved to engage either of a pair of arcuate cams 30 or 30 formed on and disposed at right angles to the arm25 or 25 When the pin oc cupies a horizontal position as shown in Figure 1, it is out of engagement with either of the cams 30, but when rotated in either direction it engages one or the other of the cams 30 and thus effects a circumferential shifting of the cage about the driving element E as a center to cause sueh cage to oncupy either of its extreme positions accord, ing as the pin is rotated in one direction or the other. It is to be particularly noted that because of the particular contour of the cams 30 or 30" the pin 28 or 28 when rotated from neutral position will effect an instantaneous shiftingoftheca-ge and to thereby cause the instantaneous operation of the clutch device which is necessary tothe suc-w n a V i I u cessrul operation of the, mechanism; 1 The yoke 29 or 29 has sliding engagement with a guide rod G or G'" mounted for rocking i movement by an extension 31 or 31 which is journaled in the frame F; The extensions 31 a el 3 1 are operatively connected to each other to effect simultaneous movement of the guide rods G and G by a connecting yoke 82, and to which latter suitable means (not shown) is adapted to be connected for manually actuating the yoke from a remote point.

From this arrangement it will be seen that with the yoke 32 in vertical position the 1 guide rods G and G occupy a horizontal position and that when the yoke is moved forwardly or rearwardlyfrom the vertical position the guide rods will simultaneously swing about the extensions 31 and 31 as centers to occupy various inclined positions. In the extreme forward position of the yoke 32 as shown in Figure 8, the guide rods G and G occupy their extreme inclined position in one direction, and when the yoke is moved to the other'ex'treme position as shown in dotted lines in Figure 8, the guide rods will occupy the position shown in dotted lines;

As previously described, the yokes 29 and 29 are slidably fitted upon the rods G and G, and in such manner that they at all times maintain a sliding engagement with the rods irrespective of the. position of the latter so that it will be seen that when the rods are inclined, asshown in Figure 8, the yokes will effect a partial rotation of the shafts 27 and 27%to. effect a shifting .ofthe cages 22 and 22 with the pins 28- and 28. engaging thecams returned to neutral position.

position shown. indash, lines shown in FigvFrom the foregoing description, theoperation of the transmission mechanism may be briefly described as followsz' I i .WVhen the mechanism is inv the normal position as shown in Figures -1 and 2 and the driving element E is being reciprocated by the element. E, the cages 22 and 22 being in neutral position,-the clutch devices are in-' effective to rotate the drum D so that the driving element E does not rotateand therefore the driven element E remains inactive. However, when the guide rods G and G are moved to inclined position, an instantaneous shifting of. the cages 22 and .22 to one of their extreme positions iseffected, and under,

the-reciprocating action'of the driving element E oscillation of'theicamsp20 and "20?- is alternatel efiected by virtue of the lateral movement imparted to, the stubishafts 27 and .27 throughthe medium of the yokes '29 and 29- engaging the-guide rods, Grand G. It'will be clear that the-degree-of os-i cillation of the cams 20and 20" is. directly dependent upon the-position of the guide rods so that if the latteruare moved totheir' greatest inclination, the maximum lateral movement of the stub shaft iseffeoted to cause the greatest degree'of oscillation of the cams. This naturally effects a rotationof the drum atiits maximum speed, and it is to be understood that by lessening the inclination of the rods the speedof the drum,

can be correspondingly 1 decreased. When the guide rods G and G; are moved to the we 8 or as shown insolid lines in Figure 10, a reverse rotation of the drum 1) and consequently the driven element E is effected, and by varying the inclination of the rods between this extreme position and the neutral position, the rotational speed of the driven element E can be likewise varied. It will thus be seen that according as the guide rods are moved from the horizontal or neutral position to either of its. inclined or extreme positions, the rotational speed of the driven element E is gradually increased and that the direction of rotation of the driven. element E can be varied according as the rods are moved in one direction or the other from neutral position.

scribed only oneform of transmission mechanism. embodying my invention, it is to. be understood that-various changes and modifications may be made herein without depart ing from the spirit of the invention and the spirit and scope'jofj the appended claims.

What I claim. is: i

1 1.. A transmission mechanism comprising,

a frame, a rotary driven shaft journaledin the frame," a reciprocating and rotary driving shaft journaled in the frame and oper-,

ativelyconn'ected to thedriven shaft,adr nn fixed to the driving shaft, polygonalcamsv loosely fitted on-theadriving shaft at opposite sides'ofthe drum, cages interposed-be tween the cams and drum,"clutchmembers movably mounted'in the cages, and adapted to be engaged by said drum and cams, guide rods rockingly supported upon the frame, stub shafts on the cams, cams carried by the cages, pinson said shafts adapftedto engage saidcage-cams, and yokes on the stub shafts and slidably fitted on-said guide rods.

2. A transmission mechanism comprising,

a rotary and'reciprocatin'gdrivingelement; a rotary driven element operatively. con nected to the"dr1v1ng.element, a drum fixed to the driving element, :cams loosely-fittedon. the driving element at opposite sides "of said drum and'disposedwithin. the drum, 'cagesinterpos'ed between the'cams and drum,

two sets of clutch members movably mounted] in the cages and adapted to contact with'said' cams and drum, adjustable guide rods susv tained ad aCent the drum, andm'ea'nsasso- 1 00 ciated with. said cages and guide rods for actuating said cams to cause said .clutchmem-- I be'rs to alternately engage sa d drum and to effect a stepby step rotationof the drumv under the action .of. the reciprocating driv- V 1 1.05. i 3. A transmisslon mechanism comprising, 7,

ing element.

a rotary and reciprocating drivingelement,

a rotary driven element; operatively: 'con nected to the. driving element for rotation "therewitlna drum fined to:the driving .el'e

ment, intermittent clutch devices associated I with the drum for continuously rotating the I drum in one direction or the :otherfand means operable by the 'reprocating movement of thedriving element for actuatingtlie clutch devices.

4. transmission mechanism comprising,

a rotary and reciprocating driving element, a rotary driven element operatively con"- nected to the driving element for rotation therewith, a drum fixed to the driving element, intermittent clutch devices associated with the drum for continuously rotating the drum in one direction or the other, and means operable by the reciprocating movement of the driving element for actuating the clutch devices, said means being adjustspeed of saiddrum. I

5. A. transmission mechanlsm comprising,

7 j able to increase or. decrease the rotational Although I have herein shown and dea rotary and reciprocating driving element, a rotary driven element operatively connected to the driving element for rotation therewith, a drum fixed to the driving element, intermittent clutch devices associated with the drum for continuously rotating the drum in one direction or the other, and means operable by the reciprocating movement of the driving element for actuating the clutch devices, said means being adjustable to cause said clutch devices to increase or decrease the rotational speed of said drum in one direction or the other.

6. A transmission mechanism comprising, arotary and reciprocating driving element, a rotary driven element operatively connected to the driving element for rotation therewith, a drum fixed to the driving element, twosets of clutch devices associated with the drum for effecting continuous rotation therewith in one direction or the other, and means operable by the reciprocating movement of the driving element for alternately actuating the sets of clutch devices in one direction or the other and at vari able speeds comprising, cams on the clutchl devices, pins engageable with the cams, yokes rotatably mounted on and movable with the clutch devices, and guide rods engageable with the yokcs, said guide rods being stationary to eii ect bodily oscillation of the yokes and adjustable to increase or decrease the oscillatory movement oi the yoires and to reverse the movement oi? the yolres.

7. A transmission mechanism comprising, a rotary and reciprocating driving element, a rotary driven element operatively connected to the drivin element for rotation therewith, a drum hxed to the driving element, two clutch devices associated with the drum with each including a cage which is circumierentially movable to vary the clutching action of the devices with respect to the drum and in either direction to effect rotation of the drum in one direction or the other, means for acuating said clutch devices comprising, cams secured to the cages, yokes movable with the clutch devices, means engage-able with said cams and operable by the movement of the yokes for circunrterentially shifting the cages in one direction or the other, and relatively stationary guide rods engaged by the yokes, said guide rods being adjustable to vary the movement of the yokes and to actuate the yokes in a manner to operate the means for shifting the cages.

8. A transmisSiOn mechanism comprising,

a rotary and reciprocating driving element,

a rotary driven element operatively connected to the driving element for rotation therewith, intermittent clutch devices asso-' 'or the other, and manually operable means for moving the clutch devices to any of their several positions and to any position between the neutral and extreme positions whereby, the rotational speed of the driving element in either direction can be varied.

9. A transmission mechanism comprising, a rotary and reciprocating driving element,

a rotary driven element operatively con nected to the driving element for rotation therewith, a drum fixed to the driving elem out, intermittent clutch devices engageable with the drum, each of said devices com.- prising,-a polygonal cam,a cage interposed between the drum and cam, and clutch members confined within'the cage and engageable by said cam for o-peratively connecting the cam anddrum, means for shifting the cage to cause said members to occupy different clutching positions comprising, stub shatts jo'urnaled on the cams, pins carried by the stub shafts, cams carried by the cages and enga-geable by said pins, and means operable by the re-ci rocating movement of the driving element or actuating said: clutch devices, said means comprising yokes sustained on said stubshafts, and guide rods slid-ably receiving said yokes, said guide rods being adjustable to cause said yokes to move in different paths for the purpose described.

HARRY L. APPLEBAUM. 

